@article{10_4064_aa8109_12_2015,
     author = {Stephen D. Cohen and Tom\'as Oliveira e Silva and Tim Trudgian},
     title = {On {Grosswald{\textquoteright}s} conjecture on primitive roots},
     journal = {Acta Arithmetica},
     pages = {263--270},
     publisher = {mathdoc},
     volume = {172},
     number = {3},
     year = {2016},
     doi = {10.4064/aa8109-12-2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa8109-12-2015/}
}